Bug fixes

Fixed default_content dependency

#3103280: Fails on 8.8, fix missing property

Issue #3103249 by BetoAveiga: Improve page cache invalidation for Ajax popup

Alpha3 release to update the api function name for altering inheritance class

• Issue #3103564 by Abdelrahman_Amer: Fixed notice for [Varbase Layout Builder] oembed iframe on an Undefined index: render element in drupal_find_theme_templates()

• Issue #3101611: Changed [Varbase Media Header] media oembed iframe CSS placeholder token to use Drupal core committed style template
• Issue #3093422 by Mohammad Fayoumi: Added configuration link for the [ Varbase Media Header Settings ] page